Henry f



(No Model.)

H. F. KEIL.

SPRING HINGE.

N0. 387,421. Patented Aug. 7, 1888.

HENRY F. KEIL, OF NEW YORK, N. Y.

SPRING- HINGE.

SPECIFICATION forming part of Letters Patent No. 387,421, dated August7, 1888.

Application filed March 30, 1888.

To cLZZ zar/"tom it may concern..-

Beit known that l, HENRY F. KEIL, ofthe city, county, and State ofNewYork, haveinvented a new and Improved Spring-Butt, of which thefollowing is a full, clear, and exact description.

My invention relates to a springbut.t, and has for its object to providea butt of simple, durable, and effective construction, whereby thetension of the spring may be regulated by the manipulation of one tip,and wherein the spring will be completely concealed and the device havethe outward appearance of an'ordinary butt.

The invention consists in providing a butt with tubular pins orpintles,the combination, with said tubular pintles, ofa revolvingspindle, the combination, with a pintle and spindle, of a spring, and iuthe construction and combination of the several parts as will behereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 is a side elevation of the butt. Fig. 2 is a central verticalsection thereof. Y Fig. 3 is an elevation of one section of thepintledetached, the spring being partly in section. Fig. 4 is atransverse section on line4 4 of Fig. 1, and Fig. 5 is asimilar sectionon line 5 5 of Fig. 2.

ln carrying out the invention, leaves 10 are provided, having attachedthereto ordinary knuckles 1l, adapted to interlock in the ordinarymanner. Upon one leaf, at the upper end, at theintersection of said leafwith the upper knuckle, a vertical post or projection, 12, is castintegral therewith, for a purpose hereinafter stated, and in thelowerknuckle, upon the inner side at the bottom, a recess,13, is produced.

The pintle 14 is tubular and divided into two sections, 15 and 16, eachsection being provided with a tip, 17, adapted to surmount the knucklesat top and bottom. The pintle-section 15, which is the upper section, isprovided with a spindle, 18, cast integral therewith or otherwisesecured thereto, which spindle projects from the under side of the tipor head Serial No. 269,004. (No model.)

17, vertically downward'within the center of the section and outtherefrom. Below the lower end of the upper pintle-section, 15, a

second section of spindle 19 is secured to the aforesaid upperspindle-section, 18.

The lower spindle-section is adapted to revolve upon the upperspindlese'ction, which is preferably accomplished in the followingmanner: The end of the upper spindlesection is provided with alongitudinal aperture, 20, and the lower spindle-section with a post,21, adapted for insertion in the aforesaid aperture 20. The post havingbeen entered in the aperture, the walls of the upper spindle-section aredepressed in any suitable manner, as shown at 22 in Fig. 5, and also inFig. 2, whereby the outer depression of the metal forms projections inthe wall of the aperture 20, which projections enter an annular groove,23, produced upon the surface of the spindle post 2l, as bestillustrated in Fig. 2.

The lower spindle section, 19, is of a length .sufficient to passthrough the lower pintlesection, 16, and extend a distance upward in thetip or head 17 of that section. Both sections of the spindle are of thesame contour, which is polygonal, and the lower spindle-section issecurely held in the lower pintle-section by entrance in an aperture,24, produced in the inner surface of the lower head, as clearly shown inFig. 2, the aperture 24 being so shaped as to be perfectly adapted tothe contour of the spindle and prevent the same from turning.

Thelower pintlesectiou, 16, below the flange or collar 25, whichnormally rests against the lower knuckle of the leaves, is provided witha longitudinal post, 26, of a contour similar to the contour oftherecess 13 in the said lower knuckle, the post or projection 26 beingadapted for entrance in the said recess, as will be hereinafter setforth.

The neck of the lower tip orhead, 17, is provided with aconicaldiametrical aperture, 27, which aperture is adapted to register with anaperture,28, in the lower spindle-section, when the said spindle sectionis in its normal position, as indicated in Fig. 2.

The spring 29, adapted to surround both sections of the spindle, is acloselycoiled spring, the wire at each end being bent to the IOO contourof the spindle, the body ofthe spring being circuler. It will thus beseen thut when the spindle is passed through the spring the seid springis prevented from turning upon the spindle, but Will be contracted whenthe spindle is rotated.

In the `collar 30 ol' theupper tip or houd,

which corresponds to the llungc or coller 25 of the lower tip, e seriesol" apertures, 31, uro drilled or otherwise produced, which uperturesare adapted `for the reception of u pin,32.

The severulknuekles of the leaves having been fitted to place, thespring 29 is passed over the spiudleinto the upper pintle-section,

15, to u bearing against the under side of the head. The upperspindle-section, the spring,

und the spindle ure then passed down through the several knuckles untilthe flange 30 rests upon the surface of the upper knuckle. The loWerpintieseetion, 1G, is then introduced in the knuckle over the spring undpressed upward to un essentiel contact with the upper pintleseetion, thelug or projection 2G .upon the seid lower pintle-sretion being inside toenter the recess 13 in the lower knuckle.

Thenpcrture in thelower section ofthe spindle-section will now liuvebeen broughtin ister with the aperture 28 in the neck of the lower heed,17, the lower end of the spindle having been entered into the recess 24-iu the said lower heud. 1When this adjustment hns beenaccolnplislied,the pin 83 is passed through the apertures 2S und 27,which provides un auxiliary menus of holding the lower spindlesection inrigid contact with the lowerpiule section, us clearly shown in Fig. 2.

To exert a tension upon the spring,ihe hinge having non heen placedtogether, it simply becomes necessary to grasp the upper tip, 17, undrevolve the sume, whereupon the upper spindleseetion revolving upon thelo iver spindle-seelion,\vl1ich is stationary, contracts the spring, andwhen the spring has been sufficicntly contracted to suit the operatorthe pin 32 is entered in the aperture 31, adjacent to the lug 12, undthe heed is released, the parts being held in the aforesaid position bythe engagement of the seid piu 32 with the seid projection l2, usclearly shown in Fig. l.

Having thus fully described my invention,I cleiin us new und desire tosecure by Letters Patentl. In u spring butt-hinge, the combination, withthe leuves und knuckles thereof, of a sectional tubulur pi ntle, uspindle connecting said sections, und u spring surrounding the spindlewithin the sectional tubular pintle, substantiully es herein shown enddescribed.

2. ln u spring butt-hinge, the combination, with the leaves providedwith knuckles, of u sectional tubular pintle, u sectional andjointedspindle connecting the suid sections, und a spring surrounding thespindle Within the tubulnr piutle, substuntiully es herein shown unddescribed.

3. In u butt-hiuge,the eoinbinutio1i,\vith the leaves und knucklestliereooi'nsectional tubulur pin or pintle, u divided spindle heving onesection revolving upon the other,tl1e outer ends of which spindle ereheld in the respective pintle-section, und e spring held upon seidspindle und controlled thereby, substuutiully us shown und described.

4. In e. spring butthinge, the combination, willi the leuves '.indknuckles, of :i sectional tubular pin or pintle, u divided spindlehuving one section revolving upon the other, the outer ends of whichspindle ure held in the respective pintleseetions, u spring held uponSuid spindle und controlled thereby, und ineens, substuntiully es shownand described, for retaining the spring in n. contracted posi tion, usund for the purpose specilied.

HENRY F. KEIL.

Witnesses:

HENRY G. GARAY, W. Cerem'.

